USA Area Codes
Area Code Hillside, Area Code 908
The city of Hillside (Union county) is located in the state of New Jersey. The Hillside area code is 908. For a local call in Hillside you don't have to dial the area code.
If you want to call from Trenton to Hillside you have to dial +1 908 and the telephone number of the person you want to reach.
List of Cities located close to Hillside:
| Area | Area Code |
|---|---|
| Elizabeth | 908 |
| Irvington | 973 |
| Maplewood | 973 |
| Roselle | 908 |
| Roselle Park | 908 |
| South Orange | 973 |
| Union | 908 |
| Vauxhall | 908 |
Last change: 23.04.2007
